wj-ave55 - a2m2this service information is designed for experienced repair technicians only and is...

SPECIFICATIONSSource Input : x4 (SOURCE 1/4)

Video Input : 1.0 Vp-p/75Ω PAL composite signal, pin-jackY/C input: Y signal : 1.0 V[p-p]/75Ω, C signal : 0.3 V[p-p]/75Ω Mini Din 4-pin connectorAudio Input : –6 dBs 20 kΩ pin jack (L/R)

Character Input : x1 (TITLE) ; 10-pin connector for optional Character Generator WJ-TTL7Recording Output : x1 (REC OUT )

Video Output : 1.0 Vp-p/75Ω PAL Composite signal, pin-jacksY/C Output : Y signal ; 1.0 V[p-p]/75Ω, C signal ; 0.3 V[p-p]/75Ω Mini Din 4-pin connectorAudio Output : –6 dBV/1 kΩ, pin jacks (L/R)

Preview Output :Video Output : 1.0 Vp-p/75Ω PAL Composite signal, pin-jacks

Back Colour : White, Yellow, Cyan, Green, Magenta, Red, Blue,Black and UseableWipe Patterns : 157 patternsVideo Gain : UnityS/N (typical) : Video 50 dB (composite), 50 dB (Y/C)

Audio ; 60 dBPower Source : 220 - 240V AC, 50 HzPower Consumption : Approx 19WAmbient Operating Temperature : 0°C - 40°C (32°F - 104°F)Ambient Operating Humidity : Less than 90%Dimensions: 420 (W) x 300 (H) x 88 (D) mmWeight: 2.5 kg

Weight and dimensions indicated above are approximate.Specifications are subject to change without notice.

Digital AV Mixer

WJ-AVE55

ORDER NO. AVS9602118C8

C 1996 Matsushi ta Communicat ion Indust r ia l Co. , L td .A l l r i g h t s r e s e r v e d . U n a u t h o r i z e d c o p y i n g a n dd i s t r i b u t i o n i s a v i o l a t i o n o f l a w .

This service information is designed for experienced repair technicians only and is not designed for use by thegeneral public.It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting toservice a product.Products powered by electricity should be serviced or repaired only by experienced professional technicians. Anyattempt to service or repair the product or products dealt with in this service information by anyone else couldresult in serious injury or death.

! WARNING

CAUTIONRISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION:TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS INSIDE.REFER SERVICING TO QUALIFIED SERVICEPERSONNEL.

This symbol warns the user that uninsulated voltage within the unit may have sufficient magnitude to cause electric shock. Therefore, it is dangerous to make any kind of contact with any inside part of this unit.

This symbol alerts the user that impotant literature concerning the operation and maintenance of this has been included.Therefore, it should be read carefully in order to avoid any problems.

There are special components used in this equipment which are important for safety. These parts are indicated

by the ” Y ” mark on the schematic diagram and the replacement parts list. It is essential that these critical

parts should be replaced with manufacturer's specified parts to prevent shock, fire, or other hazards.

Do not modify the original design without permission of manufacture.

IMPORTANT SAFETY NOTICE

CONTENTSMAJOR OPERATING CONTROLS AND THEIR FUNCTIONS ........................................................................................... 1

SYSTEM CONNECTION ...................................................................................................................................................... 5

CIRCUIT DESCRIPTION

IC DESCRIPTION .............................................................................................................................................................. 6

ADJUSTMENT PROCEDURE..............................................................................................................................................27

LOCATION OF TEST POINTS AND ADJUSTING CONTROLS .........................................................................................30

APPEARANCE OF IC,TRANSISTOR AND DIODE .............................................................................................................31

CHIP COMPONENTS ...........................................................................................................................................................32

BLOCK DIAGRAM

SWITCH BOARD ...............................................................................................................................................................34

MAIN BOARD(1/2) .............................................................................................................................................................35

MAIN BOARD(2/2) .............................................................................................................................................................36

SCHEMATIC DIAGRAM

MAIN BOARD(2/2) .............................................................................................................................................................38

MAIN BOARD(1/2) .............................................................................................................................................................40

SWITCH BOARD ...............................................................................................................................................................41

POWER BOARD................................................................................................................................................................41

CONDUCTOR VIEW

MAIN BOARD ....................................................................................................................................................................37

SWITCH BOARD ...............................................................................................................................................................41

POWER BOARD................................................................................................................................................................41

EXPLODED VIEW ................................................................................................................................................................42

REPLACEMENT PARTS LIST .............................................................................................................................................43

Standard Accessory Optional Accessory

Power Cord 1 pc. Character Generator WJ-TTL7

1

POWER Section

(2) Power Indicator

Side View

(1) Power Switch (POWER ON/OFF)

(3) Wipe / Mix Selection Button (WIPE/MIX)Used to select either the Wipe or Mix Effect.Lighting : shows the Wipe selectionBlinking : shows the Mix selection

(4) Luminance Key Button Used to replace certain luminance of one picture with asecond picture.

TRANSITION SELECT Section

POWER

OFFON

POWER

TRANSITION SELECT

WIPE/MIX LUM KEY CHROMA KEY SET

(5) Chroma Key ButtonUsed to replace certain colour of one picture with asecond picture.

(6) Set Button Used to select the position for the chroma function.

MAJOR OPERATING CONTROLS AND THEIR FUNCTIONS

2

ON SCREEN DISPLAY SETTING Section

ON SCREEN DISPLAY SETTING

WIPE EFFECT COL. FADE AUDIO

(7) Wipe Button (WIPE)Used to display the Wipe menu on the preview monitor.

(8) Effect Button (EFFECT)Used to display the Effect Setting menu on the previewmonitor.

(9) Colour Button (COL.)Used to select the colour for the back screen or wipeedge.

(10) Fade Button (FADE)Used to display the Fade Setting menu on the previewmonitor.

(11) Audio Button (AUDIO)Used to display the Audio Setting menu on the previewmonitor.

POSITION/COL. CORRECT Section

POSITION/COL.CORRECT

SELECT

POSITION GRABBERSCENE

CORRECTCOL.

R

G B

(14) Scene Grabber Indicator (SCENE. GRA.)

(15) Colour Correct Indicator (COL CORRECT)

(16) Joystick ControlThis joystick Control has two functions - setting theposition of the specified wipe pattern , moving the cur-sor for setting the chroma key and correcting theColour A-bus / B-bus.

(12) Select Button (SELECT)Used to select the POSITION, SCENE GRABBER orCOL CORRECT.Notes :

1. Scene Grabber is available in pattern.2. When selecting the CHROMA ON mode and press

the desired Effect Output Button, colour correctionis available.

(13) Position Indicator (POSITION)

3

(20) Still Out Buttons (STILL)An instant still or frozen image can be obtained bypressing this button.

(21) Mix/Wipe Control (MIX WIPE EFFECT)Mix and wipe can be performed by operating this con-trol.

(22) Time Control (TIME)For adjusting the transition time of Auto Fade Functionand Auto Take Function.

(23) Auto Fade Button (AUTO FADE)Automatic fade can be executed according to the timeset by TIME Control.

(24) Auto Take Button (AUTO TAKE)Automatic wipe or mix can be executed according tothe time set by TIME Control (22).

SOURCE SELECT Section

SOURCE SELECT

SOURCE1

SOURCE2

SOURCE3

SOURCE4

BACKCOL. EFFECT STILL

A BUS

B BUS

AUTO FADE

AUTO TAKE

TIME

MIN MAX

1 4

2

8

(17) A-bus Selection Buttons (A)SOURCE 1: Used to select Source 1 Audio/Video

Signals (35)(36)(37) supplied to the rear panel.SOURCE 2: Used to select Source 2 Audio/Video



Signals (44)(45)(46) supplied to the rear panel.BACK COL: Used to select the Back Colour.

(18) B-bus Selection ButtonsSame selection can be available as mentioned in the A-bus Selection buttons (17).

(19) Effect Out Buttons (EFFECT)Used to supply the effect signal to the preview and RecOut connectors.

MODE SETTING Section

MODE SETTING

MEMORY CALL No.EVENT

1 2 3

4 5 6

7 8 9

0SELECT/UNDO

(25) Event Memory Button (EVENT MEMORY)Used to memorize the present status.

(26) Call Button (CALL)Used to recall thememorized status.

(27) Number Button (No.)

(28) Up Button

(29) Left Button

(30) Down Button

(31) Right Button

(32) SELECT/UNDO Button

(33) Enter Button ( )

4

Front Panel

(34) Titler Connector (TITLE)

TITLE

Rear Panel

COMP

Y/C

SOURCE 1AUDIO

L

RCOMP

Y/C

SOURCE 2AUDIO

L

RCOMP

Y/C

SOURCE 3AUDIO

L

RCOMP

Y/C

SOURCE 4AUDIO

L

RCOMP

Y/C

REC OUTAUDIO

L

R

SERIAL

GPI

PREVIEW

-AC IN

(35) Source 1 Audio Input Jack (SOURCE 1 AUDIO)

(36) Source 1 S-video Input Connector (Y/C)

(37) Source 1 Composite Video Signal Input Jack










(47) Recording Out Audio Output Jack(REC OUT AUDIO)

(48) Recording Out S-video Output Connector(REC OUT Y/C)

(49) Recording Out Composite Video SignalOutput Jack

(50) GPI Connector (GPI)Refer to the qualified service personnel or systemInstallers for this connection.

(51) Preview Output ConnectorConnect to video input connector of the preview moni-tor.

(52) Serial Connector (SERIAL)Refer to the qualified service personnel or systemInstallers for this connection.

(53) Power Socket (AC IN)Connect the Power Cord (provided) to this socket.

5

SYSTEM CONNECTION

Q Composite (RCA-style) video and audioW S-video (Y/C)

Types of Input and Output Jacks

Y/C

SOURCE 1AUDIO

L

Q W

COMP

Y/C

SOURCE 1AUDIO

L

RCOMP

Y/C

SOURCE 2AUDIO

L

RCOMP

Y/C

SOURCE 3AUDIO

L

RCOMP

Y/C

SOURCE 4AUDIO

L

RCOMP

Y/C

REC OUTAUDIO

L

R

SERIAL

GPI

PREVIEW

-AC IN

WJ-TTL7

Preview Monitor

Output Monitor

PowerCord

6

2. Main Board 2.1. IC1 on the Main Board is using the Octal 3-State Bus

Buffers IC MC74HC541AF.

Description of this IC is as follows:

2.2. IC6 and IC7 on the Main Board are using the Octal 3-

State D-FFs IC MC74HC374AF.


IC Description

1. Power Board 1.1. IC2 on the Power Board is using the Variable Shunt

Regulator IC YWTA76431S.


1.2. IC1 on the Power Board is using the-3-terminal

Voltage Regulator IC YWUPC24M12HF.


CIRCUIT DESCRIPTION

1 Reference2 Anode3 Cathode

+

–

1 3

2

Reference Cathode

Anode

Inpu

t 1

GN

D 2

Out

put

3

AS

O L

imite

r

Sta

rter

Ref

eren

ce V

olta

ge G

ener

ator

Driv

er

Ove

r-cu

rren

tP

rote

ctor

Ove

r-he

atP

rote

ctor

1 3

2

ErrorAmp.

Input Output

GND

E1 1

1A 2

2A 3

3A 4

4A 5

5A 6

6A 7

7A 8

20 Vcc

19 E2

18 1Y

17 2Y

16 3Y

15 4Y

14 5Y

13 6Y

(TOP VIEW)

E2L

INPUTS

Y

OUTPUT

: Don’t care.Z : High Impedance

H

E1L

H

A

Truth Table

8A 9

GND 10 11 8Y

12 7Y

Z∗∗

∗

1Q 2

1D 3

2D 4

2Q 5

3Q 6

3D 7

4D 8

20 Vcc

19 8Q

18 8D

17 7D

16 7Q

15 6Q

14 6D

13 5D

(TOP VIEW)

4Q 9

GND 10 11 EG

12 5Q

OE 1

INPUTSFUNCTION

EG

Latch

Q = D

: Don’t care.

Truth Table

OE

H Z

Z : High Impedance

L

H

∗

∗∗

∗

7

2.3. IC62 on the Main Board is using the 2-D Low Pass Filter HCMOS Gate Array Logic IC YWAJ0016.


Y3C

1

Vss

2

HP

C

3F

S4

4

RE

CC

0

5R

EC

C1

6

RE

CC

2

7R

EC

C3

8

VD

D

9R

EC

C4

10

RE

CC

5 1

1R

EC

C6

12

VD

D

25S

D0

26

SD

1 2

7S

D2

28

SD

3 2

9S

D4

30

Vss

31

PV

WC

0 3

2P

VW

C1

33

PV

WC

2 3

4P

VW

C3

35

VD

D

36

RE

CY

7 2

4R

EC

Y6

23

RE

CY

5 2

2R

EC

Y4

21

RE

CY

3 2

0R

EC

Y2

19

RE

CY

1 1

8R

EC

Y0

17

VD

D

16Y

2C

15V

ss

14R

EC

C7

13

PV

WC

4 3

7P

VW

C5

38

PV

WC

6 3

9P

VW

C7

40

41 SPC42 Vss43 OS144 SD545 XHI46 VDD

47 PVWY048 PVWY149 PVWY250 PVWY351 PVWY452 PVWY553 PVWY654 PVWY755 Vss56 VDD

57 ASYNC58 SYNC59 HD60 VD61 VP62 OSDB63 OSDG64 OSDR65 OSD66 ST67 REG568 REG469 REG370 REG271 REG172 REG073 Vss74 D775 D676 D577 D478 D379 D280 D1

81

D0

82

WP

TS

T 8

3 T

M2

84

TM

1 8

5 T

M0

86

PA

L 8

7 M

D1

88

MD

0 8

9 S

D6

90

WP

O 9

1 V

DD

92

WP

1/T

D0

93

WP

2/T

D1

94

WP

3/T

D2

95

WP

4/T

D3

96

CH

1/T

D4

97

CH

2/T

D5

98

LM

RS

T 9

9 C

HO

100

VD

D

101

CH

3/T

D6

102

CH

4/T

D7

103

TD

810

4 T

D9

105

SD

710

6 K

BR

107

KB

G10

8 K

BB

109

CH

AR

110

SD

811

1 A

IN7

112

AIN

611

3 A

IN5

114

AIN

411

5 A

IN3

116

AIN

211

7 A

IN1

118

AIN

011

9 S

HG

A12

0 V

ss

VDD 121SHGB 122

BIN7 123BIN6 124BIN5 125BIN4 126BIN3 127BIN2 128BIN1 129BIN0 130Vss 131

DLC 132DLY1 133

BGP 135XBS0 136

TESTOUT 137EXT0 138SD9 139

SD10 140TN 141

XBSI 142XLS 143ESY 144EXT 145VDD 146HS 147

DLY0 148XH0 149

SD11 150RST 151

VDD 134

RCLK 152SD12 153SD13 154

VDD 155YCLK 156VPN 157Vss 158

OSC2IN 159VDD 160

Pin Name I/O Description 1 Y3C O Y3C signal output terminal.

2 Vss – Ground terminal.

Pin Name I/O Description

24 RECY7 O 25 VDD – Power supply terminal.

3 HPC O HPC signal output terminal. 4 FS4 O FS4 signal output terminal. 5 RECC0 O

7 RECC2 O 6 RECC1 O

8 RECC3 O 9 VDD – Power supply terminal. 10 RECC4 O 11 RECC5 O 12 RECC6 O

26 SD0 I 27 SD1 I 28 SD2 I 29 SD3 I

18 RECY1 O 19 RECY2 O

20 RECY3 O 21 RECY4 O 22 RECY5 O 23 RECY6 O

17 RECY0 O

(TOP VIEW)

16 VDD – Power supply terminal.

13 RECC7 O 14 Vss – Ground terminal. 15 Y2C O Y2C signal output terminal.

30 SD4 I 31 Vss – Ground terminal.

REC(Y) signal output terminals.

SD signal input terminals.

REC(C) signal output terminals.

REC(C) signal output terminals.

8

Pin Name I/O Description 32 PVWC0 O


89 SD6 I SD signal input terminal. 90 CHOB O CHOB signal output terminal.

33 PVWC1 O 34 PVWC2 O 35 PVWC3 O

37 PVWC4 O 36 Vss – Ground terminal.

38 PVWC5 O 39 PVWC6 O 40 PVWC7 O 41 SPC O SPC signal output terminal.


91 VDD – Power supply terminal. 92 WP1/TD0 I 93 WP2/TD1 I 94 WP3/TD2 I

83 TM2 I

84 TM1 I 85 TM0 I 86 PAL I PAL signal input terminal. 87 MD1 I 88 MD0 I

82 WPTST I WPTST signal input terminal.

43 OS1I I OS signal input terminal 44 SD5 I SD signal input terminal. 45 XHI I XH signal input terminal. 95 WP4/TD3 I

46 VDD – Power supply terminal. 47 PVWY0 O 48 PVWY1 O 49 PVWY2 O 50 PVWY3 O 51 PVWY4 O 52 PVWY5 O 53 PVWY6 O 54 PVWY7 O 55 Vss – Ground terminal. 56 VDD – Power supply terminal. 57 ASY O ASY signal output minals 58 SYC O SYC signal output terminas.

61 VP O VP signal output terminals.

59 HD O HD signal output terminal. 60 VD O VD signal output terminal.

62 OSDB I OSDB signal input terminal.

63 OSDG I OSDG signal input terminal. 64 OSDR I OSDR signal input terminal 65 OSD I OSD signal input terminal. 66 ST I Strobe signal input terminal. 67 REG5 I 68 REG4 I 69 REG3 I 70 REG2 I 71 REG1 I

72 REG0 I 73 Vss – Ground terminal. 74 DATA7 I 75 DATA6 I 76 DATA5 I 77 DATA4 I 78 DATA3 I 79 DATA2 I 80 DATA1 I

98 LMRST O LMRST signal output terminal.

100 VDD – Ground terminal.

96 CH1/TD4 I 97 CH2/TD5 I

99 CHOA O CHOA signal output terminal.

101 CH3/TD6 I102 CH4/TD7 I103 TD8 I

107 KBG I Green signal input terminal.108 KBB I Blue signal input terminal.109 CHAR I Character signal input terminal.110 SD8 I SD signal input terminal.111 AIN7 I

104 TD9 I

105 SD7 I SD signal input treminal.106 KBR I Red signal input terminal.

115 AIN3 I116 AIN2 I

117 AIN1 I118 AIN0 I119 SHGA I SHGA signal input treminal.

112 AIN6 I113 AIN5 I114 AIN4 I

120 Vss – Ground terminal.121 VDD I Power supply terminal.

123 BIN7 I

127 BIN5 I 128 BIN2 I129 BIN1 I


124 BIN6 I125 BIN5 I126 BIN4 I

81 DATA0 I130 BIN0 I

Preview(C) signal output terminals.

Preview(C) signal output terminals.

Preview(Y) signal output terminals.

Register signal input terminals.

TM signal input terminals.

MD signal input terminals.

TD signal input terminals.

TD signal input terminals.

A signal input terminals.

122 SHGB – SHGB signal input terminal.

B signal input terminals.DATA signal input terminals.

9

Pin Name I/O Description132 DLC O DLC signal output terminal.133 DLY1 O DLY1 signal output terminal.134 VDD – Power supply terminal.135 BGP O Burst Gate Pulse output terminal.

137 TESTOUT O TEST signal output terminal.136 XBSO O XBSO signal output terminal.

138 EXT0 O External signal output terminal.139 SD9 I140 SD10 I141 TN I TN signal input terminal.

142 XBSI I XBSI signal input terminal.143 XLS I XLS signal input terminal.144 XSY I XSY signal input terminal.145 EXT I External signal input terminal. 146 VDD – Power supply terminal.147 HS O HS signal output terminal.148 DLY0 I DLY0 signal input terminal.149 XH0 O XH signal output terminal.150 SD11 I SD signal input terminals. 151 RST I RST signal input terminal.152 RCLK I Clock pulse input terminal.153 SD12 I154 SD13 I155 VDD – Power supply terminal.156 YCLK O Clock pulse output terminal.157 VPN O VPN signal output terminal.158 Vss – Ground terminal.

159 OS2I I Oscillation signal input terminal.160 VDD – Power supply terminal.

SD Data input terminals.

SD Data input terminals.

2.5. IC28, IC42 and IC59 on the Main Board are using the

PAL 1,135-word x 8-Bit FIFO High Speed Line Buffers

IC YWUPD42102G3.


(TOP VIEW)

DO0 1

DO1 2

DO2 3

DO3 4

RE 5

RSTR 6

GND 7

RCK 8

DO4 9

DO5 10

DO6 11

DO7 12 13 DI7

14 DI6

15 DI6

16 DI4

17 WCK

18 VDD

19 RSTW

20 WE

21 DI3

22 DI2

23 DI1

24 DI0


1 DO0 O

2 DO1 O

3 DO2 O

4 DO3 O

5 RE I Read Enable signal input terminal.

6 RSTR I Reset Read pulse input terminal.

7 GND – Ground terminal.

8 RCK I Read Clock pulse input terminal.

9 DO4 O

10 DO5 O

11 DO6 O

12 DO7 O

13 DI7 I

15 DI5 I

14 DI6 I

16 DI4 I

17 WCK I Write Clock pulse input terminal.


19 RSTW I Reset Write Pulse input terminal.

20 WE I Write Enable signal input terminal.

21 DI3 I

22 DI2 I

23 DI1 I

24 DI0 I

Data input terminals. (8-Bit)

Data input terminals. (8-Bit)

Data output terminals. (8-Bit)

Data output terminals. (8-Bit)

2.4. IC64 on the Main Board is using the 3-Terminal

Voltage Regulator IC YW78L09UATE2.

Description of these IC is as follows:

Output 1

GND 2Input 3

ReferenceVoltageGenerator

Over-currentProtector

Ove

r-he

at P

rote

ctor

3 1

2

Error Amp.

Input Output

GND

10

2.8. IC511 and IC512 on the Main Board are using the

Video Sync. Separator IC YWLM1881M.


2.6. IC12, IC47, IC49, and IC50 on the Main Board are

using the Single 2-Input AND Gate IC YWSC7S08F.


2.7. IC14 on the Main Board is using the Dual 6dB Video

Amplifier IC with 75Ω Driver YWNJM2268V.


5 Vcc

4 OUT

IN1 1

IN2 2

GND 3

(TOP VIEW)

Output

LHLH

HHHL

LLHH

Truth TableInputs

IN1 IN2

75 ΩDriver

6 dBAmp.

6

3

4

VSAG1

GND

Vcc

Bia

sC

lam

p

6 dBAmp.

75 ΩDriver

2.8K

2.8K 2.2K

750

7

2

8

1

5

8 VIN2

7 Vcc

6 N.C.

5 VOUT2

VIN1 1

GND 2

VSAG1 3

VOUT1 4

(TOP VIEW)

VIN1

VIN2

VOUT1

N.C.

VOUT2


1 VIN1 I Input terminal for Amplifier 1.


3 VSAG1 – Sag compensation terminal for Amplifier 1.

4 VOUT1 O Output terminal for Amplifier 1.

5 VOUT2 O Output terminal for Amplifier 2.

7 Vcc – Power supply terminal.

6 N.C. – Non connection.

8 VIN2 I Input terminal for Amplifier 2.

1

2

3

4

8

7

6

5

Comp.

Sync

GND

VCC

Odd/EvenField Index

RSET

(TOP VIEW)

Video In

Vertical

Sync Burst/BackPorch Clamp

RSET GND

VideoIn

VCC

Comp.Sync

Odd/EvenFieldIndex

Burst/BackPorchClamp

VerticalSync

VCC

VCC

8

2

1

3

6

+

–

–

+

VA

VB

V+

–

V1

+

–

+

–

V2

V2

V1

CK

RQ

CK

QD

D

–

+

+

–

S

R

Q

Q

1/8 OSC

Regulator

–

+

+

–

Capacitor ChargeCurrent

4

7

5

11

2.9. IC26 and IC40 on the Main Board are using the Comb/BPF Filter IC YWMC141625BFU.


1 2 3 4 5 6 7 8 9 10 11 12252627282930313233343536

242322212019181716151413

373839404142434445464748

D3D2D1D0

M/MPAL/NTSC

DGNDDVccCLK

Comb/BPFBypass

BW

TE1TE0MODE1MODE0ADCLKDGNDNC (AD GND)VINCLOUTCLCRBTRTP

D4

D5

D6

D7

C0

C1

C2

C3

C4

C5

C6

C7

DG

ND

DV

cc NC

YO

UT

DA

RE

FD

AG

ND

DA

Vcc

CO

UT

NC

IBIA

SA

DG

ND

AD

Vcc

37

38

39

40

41

42

43

44

45

46

47

48

24

23

22

21

20

1918

17

16

15

14

13

TE1

TE0

MODE1

MODE0

ADCLK

DGND NC (AD GND)

VIN

CLOUT

CLC

RBT

RTP

D3

D2

D1

D0

M/M

PAL/ NTSC

DGND

DVcc

CLK

Comb/ BPF

Bypass

BW

D4

D5

D6

D7

C0

C1

C2

C3

C4

C5C6C7

DG

ND

DV

cc NC

YOUT

DAREF

DA

GN

D

DA

Vcc

COUT

NC

IBIAS

AD

GN

D

AD

Vcc

36

35

34

33

32

31

30

29

28

27

26

25

1 2 3

4

5

6 7

8

9

10

11 12

PO

RTME

MO

RY

MO

DE

BP

FB

PF

BP

F

A.C

.F.

PR

OC

ES

SIN

G

BP

F

CLK

BU

F

CO

NT

RO

L L

OG

ICC

ON

TR

OL

LO

GIC

CLA

MP

DA

CD

AC

IBIA

S

SE

LF B

IAS

AD

CC

LKB

UF

1H/2

H

1H/2

H

MO

DE

PO

RT


1 DGND – Ground terminal for Digital Circuit. 2 DVCC – +5V supply terminal for Digital Circuit.

3 N.C. – Non Connection.

4 YOUT O Luminance signal output terminal. 5 DAREF I Reference Voltage input terminal for D/A Converter circuit.

6 DAGND – Ground terminal for D/A Converter Circuit. 7 DAVCC – +5V supply terminal for D/A Converter Circuit. 8 COUT O Chroma signal output terminal.

9 N.C. – Non Connection.10 IBIAS I Current Control terminal for A/D and D/A Coverter Circuits.11 ADGND – Ground terminal for A/D Converter Circuit.

13 RTP I Top Reference Voltage input terminal for A/D Converter Circuit.14 RBT I Bottom Reference Voltage input terminal for A/D Converter Circuit.

12 ADVCC – +5V supply terminal for A/D Converter Circuit.

15 CLC I Clamp Time Constant setting terminal.16 CLOUT O Clamp Voltage output terminal.17 VIN I Voltage input terminal for A/D Converter Circuit; 3.3Vp-p max.

18 N.C. – Non Connection.

19 DGND – Ground terminal for Digital Circuit.20 ADCLK I Clock pulse input terminal for A/D Converter Circuit.21 MODE0 I

22 MODE1 I

23 TE0 I

24 TE1 I

25 C7 I/O

26 C6 I/O

(TOP VIEW)

Mode set signal input terminals.

Test Mode set signal input terminals.

Data(Y) input/output terminals.

12

2.10. IC500-503 on the Main Board are using the 2-

Channel Electronic Volume/Balance IC YWM51132

FP.



46 COMB/BPF I Filter Select signal input terminal. L: Comb Filter; H: Band Pass Filter

33 D7 I/O

34 D6 I/O

35 D5 I/O

36 D4 I/O

37 D3 I/O

38 D2 I/O

39 D1 I/O

40 D0 I/O

41 N/M I Colour TV Sytem Select signal input terminals.42 PAL/NTSC I

43 DGND – Ground terminal for Digital Circuit.44 DVcc – +5V supply terminal for Digital Circuit.

45 CLK I Clock Pulse input terminal.

47 BYPASS I Bypass signal input terminal.

48 BW I Band switching signal input terminal for Chrominance signal. L : Narrow Band; H : Wide Band

Chrominance Data input/output terminals.

N/MLLHH

PAL/NTSCLLHH

SYSTEMPAL B, G, H, I

NTSCPAL NPAL M

ModeSwitch

ControlVoltage Generator

4

Regulator

5

15

16

14

10

1

2

11

9

7

8

6 VCA 2

VCA 1

2.11. IC48 on the Main Board is using the Single 2-Input

NAND Gate IC YWSC7S00F.


2.12. IC18, IC19, IC33, IC44, IC53, IC56, IC100 and IC101

on the Main Board are using the Single Inverter IC

YWSC7SU04F.


2.13. IC3 on the Main Board is using the Voltage Detector

IC YWM51953AFP.


5 Vcc

4 OUT

IN1 1

IN2 2

GND 3

(TOP VIEW)

Output

LHLH

HHHL

LLHH

Truth TableInputs

IN1 IN2

5 Vcc

4 Out

N.C. 1

In 2

GND 3

(TOP VIEW)

Output

LH

HL

Truth TableInput

N.C. 1 8 N.C.

7 Vcc

6 Output

5 Cd In

N.C. 2

N.C. 3

GND 4

+-

5µATypical

25µATypical

1.25V

-

(TOP VIEW)

VCC

4.25V

HOutput

L

t

t

0.65V

td td

td 0.34 x Cd (pF) µsec.

outputindefined

13

2.14. IC30 and IC46 on the Main Board are using the 4-MB Cache DRAM IC YWM5M4V416TP.


Vcc 1DQCI 2

DQCU 3

CC1# 4

CC0# 5WE# 6

CS# 7

CMD# 8

CMS# 9

K 10

DQ0 11

Vss 12

DQ1 13

DQ2 14

50 DQ10

52 DQ11

54 Vcc

55 DQ12

56 VccQ

57 DQ13

58 DQ14

59 Vss60 DQ15

61 AS6

62 AS7

63 AS864 AS9

65 N.C.

66 N.C.

67 AD7

68 AD869 AD9

70 Vss

VccQ 15

DQ3 16

Vss 17

47 DQ8

48 Vss

49 DQ9

51 VccQ


14 DQ2 I/O

22 DQ6 I/O

23 P52/A10 I/O P52/A10 signal input/output terminal.


25 N.C. – No connection.

26 AS0 I

27 AS1 I

28 AS2 I

29 RAS# I RAS signal input terminal.

30 CAS# I CAS signal input terminal.

31 DTD# I DTD signal input terminal.

33 Ad1 I

32 Ad0 I

34 Ad2 I




44 AS5

46 N.C.

41 AD6

42 AS343 AS4

45 G#

DQ4 19

VccQ 20

DQ5 21

DQ6 22

Vss 23

DQ7 24

N.C. 25

AS0 26

38 AD339 AD440 AD5

36 Vss37 N.C.

AS1 27

AS2 28RAS# 29

CAS# 30

DTD# 31AD0 32AD1 33AD2 34Vcc 35

38 AD3 I

39 AD4 I

40 AD5 I

41 AD6 I

42 AS3 I

43 AS4 I

46 N.C. I No connection.

44 AS5 I

45 G# I G signal input terminal.


1 Vcc – Power supply.

2 DQCI I

3 DQCU I

4 CC1# I

5 CC0# I

6 WE# I Write Enable signal input terminal.

7 CS# I Chip Select signal input terminal.

8 CMD# I DRAM clock mask signal input terminal.

9 CMS# I SRAM clock mask signal input terminal.

10 K I K signal input terminal.

11 DQ0 I/O DQ signal input/output terminal.


13 DQ1 I/O

(TOP VIEW)

15 VccQ – Power supply.


DQC signal input terminals.

Control clock pulse input terminals.

DQ signal input/output terminals.


AS signal input terminals.

Address signal input terminals.


AS signal input terminals.

47 DQ8 I/O DQ signal input/output terminal. 48 Vss – Ground terminal.

49 DQ9 I/O

50 DQ10 I/O 51 VccQ I Power supply terminal.





56 VccQ – Power supply terminal.


20 VccQ – Power supply terminal.

21 DQ5 I/O


14

2.17. IC513 on the Main Board are using the Quad 3-State

Bus Transceivers IC YW74ABT244DB.



Voltage Regulator Driver IC YWM5237ML.





67 AD7 I

68 AD8 I

69 AD8 I


64 AS9 I


61 AS6 I

62 AS7 I AS signal input terminals.63 AS8 I

DQ signal input/output terminals.57 DQ13 I/O

58 DQ14 I/O



G1 1

1A1 2

2Y4 3

1A2 4

2Y3 5

1A3 6

2Y2 7

1A4 8

20 Vcc

19 G2

18 1Y1

17 2A4

16 1Y2

15 2A3

14 1Y3

13 2A2

(TOP VIEW)

A

L

INPUTS

Y

LH

OUTPUT

: Don’t care. Z : High Impedance

HG

LL H

Z

Truth Table

2Y1 9

GND 10 11 2A1

12 1Y4

∗

∗2

GND

AS

OP

RO

TE

CT

ION

VADJ

VIN

–+

OV

ER

CU

RR

EN

TP

RO

TE

CT

ION

OV

ER

TE

MP

ER

AT

UR

EP

RO

TE

CT

ION

RE

FE

RE

NC

EV

OLT

AG

EG

EN

ER

AT

OR

ERROR AMP.ST

AR

T-U

P

1 INPUT

2 GND

3 VADJ

1

3

Out

put

1

GN

D 2

Inpu

t 3

ReferenceVoltageGenerator

Over-currentProtector

Ove

r-he

at P

rote

ctor

3 1

2

Error Amp.

Input Output

GND

2.16. IC11 on the Main Board is using the 3-Terminal

Voltage Regulator IC YW78L05UATE2.


15

2.18. IC25 and IC39 on the Main Board are using the C-MOS 8-Bit 2-Channel High Speed A/D Converter IC MN65752H.


27 D

B6

26 D

B5

25 D

B4

28 D

B7

29 N

OE

30 C

LK31

DV

ss32

NP

OW

DB

33 D

Vss

34 D

VD

D35

VR

BB

36 V

RB

SB

DA

3 1

2D

A2

11

DA

1 1

0D

A0

9

BS

D

8N

BS

M

7

NP

OW

DA

5

DV

ss

6

DV

ss

4D

VD

D

3V

RB

A

2V

RB

SA

1

24 DB323 DB2222 DB121 DB020 DVDD19 DVDDL18 DVDDL17 DVDD16 DA715 DA614 DA513 DA4

VRTSB 37VRTB 38AVDD 39VINB 40AVss 41AVDD 42AVss 43AVss 44VINN 45AVDD 46VRTA 47

VRTSA 48

(TOP VIEW)


1 VRBSA O VRBSA signal output terminal. 2 VRBA I VRBA signal inut terminal.

3 DVDD – Digital power supply terminal.

4 DVss – Digital ground terminal.

5 NPOWDA I Power down mode signalinput terminal.

7 NBSM I


8 BSD I

10 DA1 O

11 DA2 O

12 DA3 O


14 DA5 O

15 DA6 O

21 DB0 O

22 DB1 O

23 DB2 O

24 DB3 O

25 DB4 O 26 DB5 O

27 DB6 O

28 DB7 O 29 NOE I Digital output enable signal input terminal.




32 NPOWDB I Power down mode signal input terminal.

35 VRBB I Bottom side reference voltage input terminal.

36 VRBSB O Bottom side reference voltage output terminal.

37 VRTSB O Top side reference voltage output terminal.

38 VRTB I Top side reference voltage input terminal.

39 AVDD – Analog Power supply terminal.

40 VINB I Analog signal input terminal.

41 AVss – Analog ground terminal.

9 DA0 O

13 DA4 O


43 AVss –

44 AVss –

45 VINA I Analog signal input terminal.


47 VRTA I Top side reference voltage input terminal. 48 VRTSA O Top side reference voltage output terminal.

16 DA7 O


18 DVDDL –

19 DVDDL –


30 CLK I Clock pulse input terminal.

TEST signal input terminals.

Digital code output terminals.



Low Voltage Digital power supply terminals.

Analog ground terminals.

16

2.19. IC52 and IC55 on the Main Board are using the 8-Bit 2-Channel D/A Converter IC YWMB40968PF.



1 A5 I

2 A6 I

3 A7 I

4 A8 I (LSB)

5 CLKA I Ach Clock pulse input terminal.

6 B1 I (MSB)

7 B2 I

8 B3 I

10 B5 I

11 B6 I

12 B7 I

13 B8 I (LSB)

14 CLKB I Bch Clock pulse input terminal.

16 COMP I Phase Compensation terminal.

17 VROUT O Reference Voltage output terminal.

18 VRIN I Reference Voltage input terminal.

19 VccA – Power supply terminal for Analog circuit.

20 BOUT O Bch Analog signal output terminal.

21 A.GND – Ground terminal for Analog circuit.

22 AOUT O Ach Analog signal output terminal.

23 VccA – Power supply terminal for Analog circuit.

24 VccD – Power supply terminal for Digital circuit.

25 A1 I (MSB)

26 A2 I

27 A3 I

15 D.GND – Ground terminal for Digital circuit.

(TOP VIEW)

A5 1

A6 2

A7 3

A8 4

B2 7

B3 8

B4 9

B5 10

B6 11

B7 12

B8 13

CLKB 14 15 D.GND

16 COMP

17 VROUT

18 VRIN

19 VccA

20 BOUT

21 A.GND

22 AOUT

23 VccA

25 A1

26 A2

28 A4

27 A3

B1 6

24 VccDCLKA 5

Ach Digital Data input terminals. (8-Bit)

9 B4 I Bch Digital Data input terminals. (8-Bit)

28 A4 I

Ach Digital Data input terminals. (8-Bit)

INP

UT

BU

FF

ER

(A

)

25

26

27

28

1

2

3

4 MA

ST

ER

SLA

VE

F/F

(A

)

BU

FF

ER

(A

)

CU

RR

EN

T S

WIT

CH

(A

)

VccA

R

2R

2R

2R

2R

R

R

R

R

R

R

22

5

AOUT

A1

A2

A3

A4

A5

A6

A7

A8

CLKA

INP

UT

BU

FF

ER

(B

)

6

7

8

9

10

11

12

13 MA

ST

ER

SLA

VE

F/F

(B

)

BU

FF

ER

(B

)

CU

RR

EN

T S

WIT

CH

(B

)

20

14

BOUT

B1

B2

B3

B4

B5

B6

B7

B8

CLKB

REFERENCERESISTOR

13VRIN

AMP.

16COMP

REFERENCE VOLTAGE 17 VROUT

19 VccA

23 VccA

24 VccD

15D.GND

21A.GND

VccA

R

2R

2R

2R

2R

R

R

R

R

R

R

17

2.20. IC16 on the Main Board is using the RS-232C Driver

IC YWUPD4721GS.


C1+ 2

C1– 4

Vcc 3

C5+ 5

C5– 6

DIN1 7

DIN2 8

20 C4+

19 GND

18 C4–

17 Vss

16 STBY

15 VCHA

14 DOUT1

13 DOUT2

(TOP VIEW)

ROUT1 9

ROUT2 10 11 RIN2

12 RIN1

VDD 1



2 C1+ – Positive side of capacitor 1 connecting terminal.


7 DIN1 I

8 DIN2 I

9 ROUT1 O

10 ROUT2 O

12 RIN1 I

13 DOUT2 O

14 DOUT1 O

15 VCHA – Charge voltage supply terminal.

16 STBY I Standby signal input terminal.


18 C4– – Negative side of capacitor 4 connecting terminal.


20 C4+ – Positive side of capacitor 4 connecting terminal.

6 C5– – Negative side of capacitor 5 connecting terminal.

4 C1– – Negative side of capacitor 1 connecting terminal. 5 C5+ – Positive side of capacitor 5 connecting terminal.

11 RIN2 I

Driver signal input terminals.

Receiver signal output terminals.

Receiver signal input terminals.

Driver signal output terminals.

2.21. IC20, IC21, IC34, and IC35 on the Main Board are

using the Analog Multiplexer/Demultiplexer IC

MC74HC4052F.


2.22. IC5 on the Main Board is using the Hex D-FFs IC

YWMC74HC175F.


E B A X COMMON Y COMMONL L L 0X 0Y

L L H 1X 1YL H L 2X 2YL H H 3X 3YH NONE NONE

YB0 1

YB2 2

ZB 3

YB3 4

YB1 5

E 6

VSS 7

GND 8

16 VDD

15 YA2

14 YA1

13 ZA

12 YA0

11 YA3

10 SA

9 SB

(TOP VIEW)

Truth Table

: Don’t care.∗∗ ∗

1Q 2

1QN 3

1D 4

2D 5

2QN 6

2Q 7

GND 8

16 VCC

15 4Q

14 4QN

13 4D

12 3D

11 3QN

10 3Q

9 CLK

(TOP VIEW)

INPUTS OUTPUTSFunction

Clear

No Change

CLR D CLK Q Q

L

H

H

H

L H

L H

H L

Qn Qn

L

H

: Don’t care.

Truth Table

CLEAR 1

∗

∗∗

∗

18

2.23. IC58 on the Main Board is using the Character Generator IC YWBU2874FV.


Pro

tect

orC

ircui

t

20 HSYNCCLK 1

Out

put C

ontr

ol

Indi

catio

n C

ontr

olD

ata

Reg

iste

r

Bac

kgro

und

Con

trol

Dat

a R

egis

ter

Dat

a S

elec

tor

CS 2

DATA 3

RESET 4

VDD 5

CKOUT 6

OSCOUT 7

OSCIN 8

TEST 9

Vss 10

19 VSYNC

18 VB

17 VG

16 VR

15 VBLK

14 VC2

13 BLK2

12 VC1

11 BLK1


1 CLK I Clock Pulse input terminal.

3 DATA I Serial Data input terminal.

4 RESET I Reset pulse input terminal.


6 CKOUT O Clock pulse output terminal.

8 OSCIN I Oscillator input terminal.

9 TEST I Test terminal.


7 OSCOUT O Oscillator output terminal.

2 CS I Chip Select signal input terminal.


11 BLK1 O Blanking Pulse-1 output terminal.

13 BLK2 O Blanking Pulse-2 output terminal.

14 VC2 O Character signal-2 output terminal.

15 VBLK O V. Blanking pulse output terminal.

16 VR O

18 VB O

19 VSYNC I Vertical Sync signal input termnal.

20 HSYNC I Horizontal Sync singal input terminal.

17 VG O Character Data output terminals.

12 VC1 O Character singal-1 output terminal.

Data InputShift Register

CharacterSizeRegister Video RAM

HorizontalAddressRegister

WriteAddressCounter

HorizontalSizeCounter

HorizontalPositionCounter

HorizontalAddressCounter

OSC

Test

Vertical AddressRegistor

VerticalSizeCounter

VerticalPositionCounter

VerticalAddressCounter

Character GeneratorROM12 x 18 Bit x 255 word

(TOP VIEW)

19

2.24. IC15 on the Main Board is using the 8-Bit 12-Channel D/A Converter YWM62352GP.


1

2

3

5

6

7

8

9

4

16

15

14

13

12

1110

AO3

AO4

AO5

AO6

AO7

AO8

AO9

GND

AO2

AO1

DI

CLK

LD

DO

AO12

(TOP VIEW)

20

19

18

17

AO10

VDD (VrefU)

VCC

AO11

VSS (VrefL) Pin Name I/O Description

1 VSS – Lower reference voltage supply (VrefL) terminal for D/A Converter circuit.

2 AO3 O

3 AO4 O

4 AO5 O

5 AO6 O Analog Data output terminals.

7 AO8 O

8 AO9 O

9 AO10 O

10 VDD – Upper reference voltage supply (VrefU) terminal for D/A Converter circuit.

12 AO11 O

13 AO12 O

11 VCC – Power supply terminal terminal.

14 DO O MSB Data output terminal from 12- Bit Shift Register.

15 LD I Load signal input terminal. Data of 12-Bit Shift Register should be loaded to Decoder and D/A Output Registers when LD = H.

16 CLK I Shift Clock pulse input terminal. Serial Data from DI terminal should be input to Decoder and 12-Bit Shift Register at raising edge of this signal.

17 DI I 12-Bit Serial Data input terminal.

18 AO1 O

19 AO2 O


6 AO7 O

12-B

it S

hift

Reg

iste

r

D11

D10

D9

D8

D0

D7

Add

ress

Dec

oder

8-B

it L

atch

8-B

it R

-2R

+ S

egm

ent

D/A

Con

vert

er

8-B

it L

atch

8-B

it R

-2R

+ S

egm

ent

D/A

Con

vert

er

A12

A1

DAC1

DAC12

DI

CLK

AO1

AO1213

18

17

16

DO LD1514

+–

+–

Analog Data output terminals.

Analog Data output terminals.

20

2.25. IC4 on the Main Board is using the 16-Bit Microprocessor IC YW78P4026GCA.


SC

AN

0

1S

CA

N1

2

SC

AN

2

3S

CA

N3

4

SC

AN

4

5K

EY

GA

TE

6

RE

SE

T

7V

DD

8X

2

9X

1 1

0V

ss 1

1D

AT

A0

12

25 ST226 ADD1727 ADD1628 ADD1529 ADD1430 ADD1331 ADD1232 ADD1133 ADD1034 ADD935 ADD836 DATA7

24 BUSCLK23 RD22 WE21 REGCLK

LED

CLK

20

DA

TA

7 1

9D

AT

A6

18

DA

TA

5 1

7D

AT

A4

16

DA

TA

3 1

5D

AT

A2

14

DA

TA

1 1

3

37 DATA638 DATA539 DATA440 DATA3

41 D

AT

A2

42 D

AT

A1

43 D

AT

A0

44 A

ST

B45

Vss

46 T

ES

T47

SU

SE

LB48

SU

SE

LA49

OS

DR

ST

50 S

T1

51 P

AL/

NT

SC

52 O

SD

DA

T53

OS

DC

S54

OS

DC

LK55

VD

D

56 F

AD

ED

AT

57 F

AD

EC

LK58

FA

DE

LD59

24S

W60

XP

OS

I

YPOSI 61TAKE 62

SPEED 63AVDD 64

AVref1 65AVss 66

ANO0 67ANO1 68

AVref2 69AVref3 70

NMI 71VBLK 72HBLK 73

GPI 74BIAS4 75BIAS3 76BIAS2 77BIAS1 78

DR1 79DT1 80


1 SCAN0

2 SCAN1


21 REGCLK

3 SCAN2

4 SCAN3

5 SCAN4

7 RESET

6 KEYGATE

8 VDD

9 X2

10 X1

11 Vss

22 WE

15 DATA3

16 DATA4

17 DATA5

18 DATA6

20 LEDCLK

13 DATA1

(TOP VIEW)

12 DATA0

23 RD

24 BUSCLK

14 DATA2 25 ST2

Data input/output terminals. (8-Bit)

19 DATA7

Bus Clock pulse output terminal.

Key Scan signal output terminals.

Reset pulse input terminal.

Power supply terminal.

Ground terminal.

Key Gate signal output terminal.

Crystal Oscillator connecting terminals.


O

O

O

O

O

O

I

–

–

I

–

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

O

O

O

O

O

O

LED Clock pulse output terminal.

Register Clock pulse outputterminal.

Write Enable signal outputterminal.

Read Strobe pulse output terminal.

ST signal output terminal.

21


33 ADD10

34 ADD9

27 ADD16

28 ADD15

29 ADD14

30 ADD13

32 ADD11

35 ADD8

36 DATA7

37 DATA6

31 ADD12

38 DATA5

Address signal output terminals. (12-Bit)


77 BIAS2

78 BIAS1

71 NMI

72 VBLK

73 HBLK

74 GPI

76 BIAS3

79 DR1

80 DT1

75 BIAS4

39 DATA4

40 DATA3

41 DATA2

42 DATA1

43 DATA0


44 ASTB

45 Vss

47 SVSELB

48 SVSELA

49 OSDRST

50 ST1

51 PAL/NTSC

52 OSDDAT 53 OSDCS

54 OSDCLK

Port signal input/output terminals. (8-Bit)

46 TEST

55 VDD

56 FADE DAT

57 FADECLK

58 FADELD

59 24SW

60 XPOSI

61 YPOSI

62 TAKE

63 SPEED

64 AVDD

OSDRST signal output terminal.

ST1 signal output terminal.

PAL/NTSC signal input terminal.

65 AVref1

66 AVss

26 ADD17

69 AVref2

70 AVref3

68 ANO1

SVSELB signal output terminal.

SVSELA signal output terminal.

67 ANO0

O

O

O

O

O

O

O

O

O

O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

O

–

I

O

O

O

O

I

O

O

O

–

O

O

O

I

I

I

I

I

–

–

–

O

O

–

Address Strobe signal output

terminal.

Ground terminal.

TEST signal input terminal.


FADEDAT signal output terminal.

FADECLK signal output terminal.

FADELD signal output terminal.

24SW input terminal.

XPOSI signal input terminal.

YPOSI signal input terminal.

TAKE signal inout terminal.

SPEED signal inout terminal.

Analog Power supply terminal.

Reference voltage terminal 1.

Analog Ground terminal.

Analog 0 signal output terminal.

Analog 1 signal output terminal.


–

I

I

I

I

I

I

I

I

I

O


Non Maskable Interrupt signal input terminal.

V.Blanking signal input terminal.

H.Blanking signal input terminal.

GPI signal input terminal.

BIAS signal input terminals.

DR signal input terminal.

DT signal output terminal.

2.26. IC23 and IC37 on the Main Board are using Quad

Analog Switches/Multiplexers/Demultiplexers IC

YWMC74HC4066F.


I/O 1 1

O/I 1 2

O/I 2 3

I/O 2 4

Control 2 5

Control 3 6

GND 7

14 Vcc

13 Control 1

12 Control 4

11 I/O 4

10 O/I 4

9 O/I 3

8 I/O 3(TOP VIEW)

Control

Switch

L OFF

H ON

Truth Table

Input

I/O – O/I

22

2.27. IC13 on the Main Board is using the 6 dB Video

Amplifier with 75Ω Driver IC YWNJM2267M.


75 ΩDriver

6.2 dBAmp.

6

3

4

Vsag 1

GND

Vcc

Cla

mp

Cla

mp

6.2 dBAmp.

75 ΩDriver

2.07

K2.

07K

2.2K

2.2K

750

750

7

2

8

1

5

8 Vin 2

7 Vcc

6 Vsag 2

5 Vout 2

Vin 1 1

GND 2

Vsag 1 3

Vout 1 4

(TOP VIEW)

Vin 1

Vin 2

Vout 1

Vsag 2

Vout 2


1 Vin 1 I Input terminal for Amplifier 1.


3 Vsag 1 – Sag compensation terminal for Amplifier 1.

4 Vout 1 O Output terminal for Amplifier 1.

5 Vout 2 O Output terminal for Amplifier 2.


6 Vsag 2 – Sag compensation terminal for Amplifier 2.

8 Vin 2 I Input terminal for Amplifier 2.


Dual Operational Amplifier IC NJM3404AM.


8 Vcc

7 OUT2

6 IN2–

5 IN+2

OUT1 1

IN–1 2

IN+1 3

Vss 4

(TOP VIEW)

– +

+ –


3-Input Video Switch IC YWNJM2245M.


(TOP VIEW)

5 VIN3

8 GND

7 OUT

6 Vcc

VIN1 1

SW1 2

VIN2 3

SW2 4

BIAS

6dB

Am

p.

15K

15K

15K

SW1 SW2 OUT

L L VIN1

H L VIN2

H VIN3

: Don’t care.

Truth Table


Quad 2-Input AND Gate IC YWMC74F08M.


1Y 3

1B 2

1A 1

2A 4

2B 5

2Y 6

GND 7

14 Vcc

11 4Y

12 4A

13 4B

10 3B

9 3A

8 3Y

(TOP VIEW)

INPUTS OUTPUT

ALLHH

BLHLH

YLLLH

Truth Table

23

2.31. IC29 and IC43 on the Main Board are using Write Control Gate Array Logic IC YWAJ0014.


Pin Name I/O Description Pin Name I/O Description

GN

D

1O

SC

1IN

2

GN

D

3P

CO

4

GN

D

5V

DD

6

4FS

C

7G

ND

8

GN

D

9S

C7

10

SC

6 1

1S

C5

12

SC

4 1

3S

C3

14

SC

2 1

5S

C1

16

SC

0 1

7G

ND

18

GN

D

19Y

AD

CLK

20

GN

D

21S

Y7

22

SY

6 2

3S

Y5

24

SY

4 2

5S

Y3

26

SY

2 2

7S

Y1

28

SY

0 2

9G

ND

30

4FS

CS

31

VD

D

32C

OM

PC

0 3

3C

OM

PC

1 3

4C

OM

PC

2 3

5C

OM

PC

3 3

6C

OM

PC

4 3

7C

OM

PC

5 3

8C

OM

PC

6 3

9C

OM

PC

7 4

0G

ND

41

GN

D

42

CO

MP

Y0

4

3 C

OM

PY

1

44

CO

MP

Y2

4

5 C

OM

PY

3

46

CO

MP

Y4

47

C

OM

PY

5

48

CO

MP

Y6

49

C

OM

PY

7

50

GN

D

51

OS

C2I

N

52

53 GND

104 GND103 YCLK102 GND 101 TSTOUT 100 TN 99 GND 98 H 97 V 96 SHDG 95 GND 94 VDD 93 GND 92 YAD7 91 YAD6 90 YAD5 89 YAD4 88 YAD3 87 YAD2 86 YAD1 85 YAD0 84 VDD 83 GND 82 FRMLM0 81 FRMLM1 80 FRMLM2 79 FRMLM3 78 FRMLM4 77 FRMLM5 76 FRMLM6 75 FRMLM7 74 VDD 73 GND 72 TOLM7 71 TOLM6 70 TOLM5 69 TOLM4 68 TOLM3 67 TOLM2 66 TOLM1 65 TOLM0 64 WRST 63 RRST 62 LMCLK 61 GND 60 CLMP 59 VDD 58 GND 57 GND 56 PCO 55 VDD 54 GND

105

PH

AS

E0

106

PH

AS

E1

107

CC

LK10

8 Y

3CLK

109

GN

D11

0 S

T2

111

GN

D11

2 R

EG

511

3 R

EG

411

4 R

EG

311

5 R

EG

211

6 R

EG

111

7 R

EG

011

8 D

711

9 D

612

0 D

512

1 D

412

2 D

312

3 D

212

4 D

112

5 D

012

6 O

FF

SE

T12

7 S

ELC

OU

NT

128

PA

L/N

TS

C12

9 A

/B13

0 P

GI4

131

PG

I313

2 P

HA

SE

213

3 R

HS

013

4 R

HS

113

5 R

HS

213

6 R

HS

313

7 R

HS

413

8 T

ES

T0

139

TE

ST

114

0 T

ES

T2

141

TE

ST

314

2 T

ES

T4

143

TE

ST

514

4 V

DD

145

S/V

146

GN

D14

7 A

D9

148

AD

814

9 A

D7

150

GN

D15

1 A

S9

152

AS

815

3 A

S7

154

AS

615

5 V

DD

156

GN

D

GND 157DQ15 158DQ14 159DQ13 160DQ12 161DQ11 162DQ10 163DQ9 164DQ8 165VDD 166AS5 167AS4 168AS3 169VDD 170AD6 171AD5 172AD4 173AD3 174AD2 175AD1 176AD0 177VDD 178

GND 179DTD 180CAS 181RAS 182AS2 183AS1 184AS0 185DQ7 186DQ6 187DQ5 188DQ4 189DQ3 190DQ2 191DQ1 192DQ0 193GND 194VDD 195

CMD 196WE 197

CC0 198CC1 199RST 200

DCARE 201EXI 202

EXSYNC 203GND 204

OSC1D 205GND 206VDD 207

GND 208

(TOP VIEW)

1 2 3 4 5 6 7 8 910

GNDOSC1INGNDPCOGNDVDD

4FSCGNDGNDSC7

– I–O––O–– I

Ground terminal.Oscillator input terminal.Ground terminal.PCO signal output terminal.Ground terminal.Power supply terminal.4FSC signal output terminal.Ground terminal.Ground terminal.Serial clock pulse input terminal.

SC6SC5SC4SC3SC2SC1SC0GNDGNDYADCLK

Serial clock pulse input terminals.

Ground terminal.

Not used.

11121314151617181920

I I I I I I I –––

24


212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071

GNDSY7SY6SY5SY4SY3SY2SY1SY0GND4FSCSVDD

COMPC0COMPC1COMPC2COMPC3COMPC4COMPC5COMPC6COMPC7GNDGNDCOMPY0COMPY1COMPY2COMPY3COMPY4COMPY5COMPY6COMPY7GNDOSC2INGNDGNDVDD

PCOGNDGNDVDD

CLMPGNDLMCLKRRSTWRSTTOLM0TOLM1TOLM2TOLM3TOLM4TOLM5TOLM6

– I I I I I I I I – O – I I I I I I I I – – I I I I I I I I I I – – –O – – –O –OOOOOOOOOO

Ground terminal.

SY signal input terminals.

Ground terminal.4FSCS signal output terminal.Power Supply termianl.

COMPC signal input terminals.

Ground terminal.Ground terminal.

COMPY signal input terminals.

Ground terminal.Oscillator input terminal.Ground terminal.Ground terminal.Power supply terminal.PCO signal output terminal. Ground terminal.Ground terminal.Power supply terminal.CLMP signal output terminal.Ground terminal.LMCLK signal output terminal.R Reset signal output terminal.W Reset signal output terminal.

TOLM signal output terminals.

72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99100101102103104105106107108109110111112113114115116117118119120121

TOLM7GNDVDD

FRMLM7FRMLM6FRMLM5FRMLM4FRMLM3FRMLM2FRMLM1FRMLM0GNDVDD

YAD0YAD1YAD2YAD3YAD4YAD5YAD6YAD7GNDVDD

GNDSHDGVHGNDTNTSTOUTGNDYCLKGNDPHASE0PHASE1CCLKY3CLKGNDST2GNDREG5REG4REG3REG2REG1REG0D7D6D5D4

O – – I I I I I I I I – –OOOOOOOO – – – I I I – IO – I – I I I I – I I I I I I I I I I I I

TOLM signal output terminal.Ground terminal.Power supply terminal.

FRMLM signal input terminals.

Ground terminal.Power supply terminal.

YAD signal output terminals.

Ground terminal.Power supply terminal.Ground terminal.SHDG signal input terminal.V signal input terminal.H signal input terminal.Ground terminal.TN signal input terminal.Test signal output terminal.Ground terminal.Y Clock pulse input terminal.Ground terminal.PHASE signal input terminal.PHASE signal input terminal.C Clock pulse terminal.Y3 Clock pulse terminal.Ground terminal.ST signal input terminal.Ground terminal.

Register signal input terminals.

Data input terminals.

25


122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172

D3D2D1D0OFF SETSEL COUNTPAL/NTSCA/BPGI4PGI3PHASE2RHS0RHS1RHS2RHS3RHS4TEST0TEST1TEST2TEST3TEST4TEST5VDD

S/VGNDAD9AD8AD7GNDAS9AS8AS7AS6VDD

GNDGNDDQ15DQ14DQ13DQ12DQ11DQ10DQ9DQ8VDD

AS5AS4AS3VDD

AD6AD5

I I I I I I I I I I I I I I I I I I I I I I – I – O O O – O O O O – – –I/OI/OI/OI/OI/OI/OI/OI/O – O O O – O O

Data input terminals.

OFF SET signal input terminal.SEL COUNT signal input terminal.PAL/NTSC signal input terminal.A/B signal input terminal.PGI signal input terminal.PGI signal input terminal.PHASE signal input terminal.

RHS signal input terminal.

TEST signal input terminal.

Power supply terminal.S/V signal input terminal.Ground terminal.

Address signal output terminal.

Ground terminal.

AS signal output terminals.

Power supply terminal.Ground terminal.Ground terminal.

DQ signal input/output terminal.




AD signal output terminals.

173174175176177178179180181

182

183184185186187188189190191192193194195196197

198199200201202203204205206207208

ADR 4ADR 3ADR 2ADR 1ADR 0VDD

GNDDTDCAS

RAS

AS2AS1AS0DQ7DQ6DQ5DQ4DQ3DQ2DQ1DQ0GNDVDD

CMDWE

CC0CC1RSTDC AREEXIEXSYNCGNDOSC1DGNDVDD

GND

O O O O O – – O O O

O O OI/OI/OI/OI/OI/OI/OI/OI/O – – O O

O O I I I I – – – – –

ADR signal output terminal.

Power Supply terminal.Ground terminal.DTD signal output terminal.Column Address Strobe signal output terminal.Row Address Strobe signal output terminal.



Ground terminal.Power Supply terminal.CMD signal output terminal.Write enable signal output terminal.

CC signal output terminals.

Reset signal input terminal.DC ARE signal input terminal.External signal input terminal.External sync signal input terminal.Ground terminal.Not used.Ground terminal.Power Supply terminal.Ground terminal.

26

XA

S2

1

XD

Q8

2

XD

Q9

3

XD

Q10

4

XD

Q11

5

XD

Q12

6

GN

D

7X

DQ

13

8X

DQ

14

9X

DQ

15 1

0S

EL

11

DQ

15 1

2

24 DQ725 DQ626 DQ5

33 G

ND

23 AS022 AS121 AS220 DQ819 DQ918 DQ1017 DQ1116 DQ1215 DQ1314 N.C.

DQ

14 1

3

34 V

cc35

CK

136

DQ

037

XW

E38

CC

0

27 D

Q4

28 D

Q3

29 D

Q2

30 D

Q1

31 C

KU

32 C

KU

O

39 C

CI

XCC1 40XCC0 41XWE 42

XDQ0 43XDQ1 44XDQ2 45XDQ3 46XDQ4 47XDQ5 48XDQ6 49XDQ7 50XAS0 51XAS1 52



(TOP VIEW)

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

XAS2

XDQ8

XDQ9

XDQ10

XDQ11

XDQ12

GND

XDQ13

XDQ14

XDQ15

SEL

DQ15

DQ14

N.C.

DQ13

DQ12

DQ11

DQ10

DQ9

DQ8

AS2

AS1

AS0

DQ7

DQ6

DQ5

DQ4

O

O

O

O

O

O

–

O

O

O

I

I

I

–

I

I

I

I

I

I

I

I

I

I

I

I

I

XAS signal output terminal.

XDQ signal output terminals.

Ground termial.


SEL signal input terminal.

DQ signal output terminals.

No connection.

DQ signal input terminals.

AS signal input terminal.

DQ signal output terminals.

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

DQ3

DQ2

DQ1

CKU

CKUO

GND

Vcc

CKI

DQ0

XWE

CC0

CC1

XCC1

XCC0

XWB

XDQ0

XDQ1

XDQ2

XDQ3

XDQ4

XDQ5

XDQ6

XDQ7

XAS0

XAS1

I

I

I

I

I

I

I

I

I

I

I

I

O

O

O

O

O

O

O

O

O

O

O

O

O

DQ signal input terminals.

CKU signal input terminal.

CKUO signal input terminal.

Ground terminal.


CKI signal input terminal.

DQ signal input terminal.

Write enable input terminal.

CC signal input terminals.

XCC signal output terminals.

XWB signal output terminal.


XAS signal output terminals.

2.32. IC800 on the Main Board are using Gate Array Logic IC YWUPD6511GC.


27

Fig. 2-2

Referring to Fig. 2-3, connect the Extension Board

between CN3 on the Power Board and CN3 on the Main

Board.

Fig. 2-3

ADJUSTMENT PROCEDURE1. Test Equipment Required

The following Test Equipments are required foradjustment of the Digital AV Mixer WJ-AVE55.

Oscilloscope

Frequency Counter

Digital Voltmeter

Vectorscope

Waveform Monitor

Underscanned Colour Video Monitor

Video Signal Generator

Audio Generator

Extension Board (Part Number: YWV01034AN) for Power

Board and Main Board as shown Fig. 1-1.

Fig. 1-1

2. Disassembling Procedure forAdjustment

Referring to Fig. 2-1, remove nine screws that secure the

Upper Cover and remove the Upper Cover.

Fig. 2-1

Referring to Fig. 2-2, remove five screws that secure the

Shield Cover and remove the Shield Cover.

Disconnect the Flat Cable from CN3 on the Power Board

and CN3 on the Main Board.

Remove five screws that secure the Main Board and

remove the Main Board.

Remove nine screws.

Remove five screws.

Remove five screws.

Disconnect the flat cable.

Connect the Extension Board.

28

3. Connection and Setting Up forAdjustment

The Fig. 3-1 shows the connection diagram for the

adjustment procedure.

Fig. 3-1

Connect the Underscanned Colour Video Monitor through

Waveform Monitor to the COMP OUT Connector on the

REC OUT Section of the Rear Panel.

Terminate the input terminal of the Underscanned Colour

Video Monitor with 75 Ω.

Connect the probe of the Digital Voltmeter, Oscilloscope

or Frequency Counter at the desired Test Point in each

adjustment step.

The adjustments should be done after 10-minute warm up.

4. Adjustment Procedure

Refer to the Location of the Test Points andAdjusting Controls on page 30.

1. Subcarrier Frequency AdjustmentTest Point: TP21 (FSC) Main Board

Adjust: VR3 (FSC) Main Board

Disconnect all signals from the Input terminals of the WJ-

AVE55.

Connect the Frequency Counter to TP21.

Adjust VR3 to obtain 17.732676 MHz ± 5 Hz.

2. Read VCO AdjustmentTest Point: TP6 (READ VCO) Main Board

Adjust: L929 (READ VCO) Main Board

Disconnect all signals from the Source Input Connectors

of the WJ-AVE55.

Connect the Digital Voltmeter to TP6.

Adjust L929 to obtain 2.8 ± 0.1V.

WJ-AVE55

WaveformMonitor

Vector-scope

UnderscannedColour VideoMonitor

75Ω

AudioGenerator

Video SignalGenerator

COMP.REC OUT

Lch RchSOURCE1/2COMP.

3. Write A VCO AdjustmentTest Point: TP2 (WRITE A VCO) Main Board

Adjust: L72 (WRITE A VCO) Main Board

Supply the Composite Video signal to the COMP

Connector of the SOURCE1 section.

Press the SOURCE1 Button of the A-Bus.



4. Write B VCO AdjustmentTest Point: TP4 (WRITE B VCO) Main Board

Adjust: L71 (WRITE B VCO) Main Board


Connector of the SOURCE1 section.

Press the SOURCE1 Button of the B-Bus.



5. A-Bus Y Gain AdjustmentTest Point: COMP Connector of REC OUT Rear Panel

Adjust: VR2 (Y GAIN) Main Board


Connectors of the SOURCE1 and SOURCE2 sections.

Press the SOURCE1 Button of the A-Bus and SOURCE2

Button of the B-Bus.

Connect the Colour Video Monitor to the Preview Output

Connector on the Rear Panel.

Press the Wipe Button, the Wipe Menu should be dis-

played on the Colour Video Monitor.

Select by using the Up/Down/Left/Right Buttons.

Select by using the SELECT/UNDO Button.

Connect the terminated Oscilloscope with 75Ω to the

COMP Connector of the REC OUT section.

Set the Mix/Wipe Control to the B-Bus side (down side).

Confirm the Luminance signal level of the B-bus.

Set the Mix/Wipe Control to the A-Bus side (upper side).

Adjust VR2 so that the Luminance signal level becomes

same level ± 21 mV as B-Bus Luminance signal level as

shown in Fig. 4-1.

29

Fig. 4-1

6. A-B H Phase AdjustmentTest Point: TP10 (A SYNC) Main Board

TP11 (B SYNC) Main Board

Adjust: VR5 (H PHASE) Main Board

Supply the Composite Cross-hatch Pattern signal to the

COMP Connectors of the SOURCE1.

Press the Mix/Wipe Button.

Press the SOURCE1 Button of the A-Bus and B-Bus.

Connect the Video Monitor to the Preview Output

Connector on the Rear panel.

Set the WIPE/MIX Control to the Center position.

Adjust VR5 so that the Cross-hatch Pattern signal of A-

Bus and B-Bus becomes coincides on the Video Monitor

as shown in Fig. 4-2.

Fig. 4-2

No Good Good

B-Bus Y Level± 21 mV

30

LOCATION OF TEST POINTS AND ADJUSTING CONTROLS

MAIN BOARD (Component Side)

Fro

nt

Rea

r

TP10 (A SYNC)

TP16 (Y GAIN)

VR2 (Y GAIN)

VR5 (H PHASE A-B)

TP11 (H PHASE A-B)

TP18

TP2 (WRITE A VCO)

L72 (WRITE A VCO)

L71 (WRITE B VCO)

TP4 (WRITE B VCO)

TP6 (READ VCO)

TP21 (FSC)

VR3 (FSC)

TP9 (HBLK)

TP8 (VBLK)

L929 (READ VCO)

– 31 –

APPEARANCE OF IC, TRANSISTOR AND DIODE

156

157

208

52

53

104105

1

120

121

160 1

40

41

8180

1

20

21

4041

60

80

6117

3

36

1

70

19

5254

1

1340

52

1449

2627

14

1

12

13

2425

36

37

48

32

1

4

32

1

5

1

10

11

20

1

8

16

9

1

7

14

8

1

4

8

5

1

14

15

28

1

12

13

24

23

1

13

223

1 1 32

K

A

K

A

K

K

A

A

32

1

3

2

1

32

1

3

2

1K

K

A

A

1

2

3

4

C

EB

EC

B BC

E

G

DS

YWAJ0014 YWAJ0016 YW78P4026GCA YWM5M4V416 YWUPD6511GC YWM141625BFUMN65752H

YWMB40968PF YWUPD42102G3

MC74HC374AFYWUPD4721GSYWM62352GPMC74HC541FYW74ABT244DB

YWM51132FPMC74HC4052FYWMC74HC175F

MC74HC4066FYWMC74HC08F

YWNJM2267MYWLM1881MYWNJM2268VNJM3404AMYWM51953AFP

YWSC7SU04FYWSC7S00FYWSC7S08F

YWM5237ML YW78L05UATE1YW78L05UATE2

YWUPC24M12HFYWTA76431S

1SV153 YWERA1502YWERA84009YWERA34-10YWERA9102

YWKV1471MA141KTXMA741TX

YWRB421D YWRD18JT1B2 2SC33772SA15762SC40812SD19792SB1219QRST2SC4713K2SD601-QR

S1WBA60 2SC2866 2SK662-PQR

32

CHIP COMPONENTS1. Chip TransistorThe transistor number is indicated on the top surface of the

chip transistor using two alphabet letters or one numerical

number and two alphabet letters.

Transistor Number

(Chip Transistor)

(Small Chip Transistor) (Pair Transistor)

Example: WQ 2SD602-QYQ 2SD601-Q1BS 2SB814-S

Rank of DC Current Gain (hFE)Transistor Number

Letter Transistor No. Letter Transistor No.A 2SB709 X 2SD602AB 2SB709A Y 2SD601C 2SB710 Z 2SD601AD 2SB710A 1A 2SB799E 2SA1022 1B 2SB814

F 2SA1034 1C 2SB902H 2SA1035 1F 2SK321 I 2SB792 1K 2SK316

K 2SC2778 1L 2SK247P 2SD814 1M 2SJ84Q 2SD813 1N 2SK199

R 2SC2480 1O 2SK198S 2SC2405 1T 2SC3077T 2SC2406 1X 2SC2845U 2SC2404 1Z 2SD1030

V 2SC2295 2B 2SK374W 2SD602 2C 2SK116

BQ 2SB766A UMT 2SC4081

Letter Transistor No.A 2SB1218

U 2SC3931W 2SD1820

Y 2SD1819E3 2SA1226OS 2SB1219UC 2SA1532YU 2SC3938

Letter Transistor No.5R XN15017S XN16015H XN45015C XN4601

5N XN6501

5L XN55014N XN5601

7W XN64357F XN6534

5R XP1501

B 2SB1218AD 2SB1219A

X 2SD1820A

Letter Transistor No.

7S XP1601

5H XP45015C XP46015H XP4501

7S XP6501

5L XP55014N XP5601

7W XP6435

X1 UMX1

Z1 UMZ1

7F XP6534

C: CollectorB: BaseE: Emitter

3

2 1

FET

C

BE

Transistor

Gate

Drain

Source1 2 3

Eacept 2SK199 Drain Source Gate 2SK199 Gate Drain Source

Appearance and Symbols

2. Chip DiodeThe diode number is indicated on the top surface of the chip

diode using two alphabet letters.

Diode Number

3. Chip ResistorThe resistor value is indicated on the bottom surface of the

chip resistor using three digit numbers.

Example:330 33 x 10 0 = 33 Ω561 56 x 10 1 = 560 Ω123 12 x 10 3 = 12 kΩ

Note: Zero ohm resistor (jumper chip) is colored red or

green.

TypeDiode

M

Letter Diode No. Letter Diode No.MA MA151A MI MA152KMB MA152A MK MA28W-BMC MA153 ML MA28T-AMD MA28-A MN MA151WAME MA28-B MO MA152WAMF MA28W-A MT MA151WK

MH MA151K MU MA152WKMH MA141K 6.2 MA3062MC MA143 SMD RD421D

Anode Cathode3

2 1

Appearance and Symbols

1 2 3MA28/MA28W/MA28T – Anode CathodeMA151K/MA152K – Anode CathodeMA151A/MA152A – Cathode AnodeMA151WK/MA152WK Anode Anode CathodeMA151WA/MA152WA Cathode Cathode AnodeMA153 Cathode Anode CommonMA141K – Anode CathodeMA143 Anode Cathode CommonMA3062 Anode – CathodeRD421D Anode – Cathode

Rank of DC Current Gain (hFE)Transistor Number

33

4. Chip CapacitorThe capacitive value of replacement chip capacitors is indi-

cated on the bottom surface. Original parts have no value

indication.

If the capacitive value is less than 100 pF, the value will be

indicated by one or two digit number expressing the capacity

directly in pF.

Example:

0.5 0.5 pF 2.5 2.5 pF

.75 0.75 pF 33 33 pF

1 1 pF 82 82 pF

If the capacitive value is 100 pF or greater, the value will be

indicated by an alpha-numeric code. The letter precedes the

number and expresses a numerical value to be multiplied by

the number which follows.

Numerical Value

* Letters I and O are not used.

Example: A1 10 x 10 1 = 100 pF

N2 33 x 10 2 = 3300 pF

S3 47 x 10 3 = 47000 pF

5. Precautions in replacing the chip component1. Make sure that the unit is turned OFF when replacing the

chip.

2. Use tweezers to prevent any damage to the chip surface.

3. Do not re-use the chips after removal.

4. Do not rub the electrode of chips.

5. Do not subject the chips to excessive stress.

6. It is recommended that a pencil-type soldering iron to be

used.

7. The solder whose diameter is less than 0.5 mm is recom-

mended.

8. Do not heat the chip more than 3 seconds.

9. Maintain temperature control under 260°C (500°F) when

soldering.

Multiplier (1 - 5)Numerical Value

Letter ValueA 10B 11C 12

D 13

E 15F 16G 18H 20

J 22K 24L 27M 30

Letter ValueN 33P 36Q 39

R 43

S 47T 51U 56V 62

W 68X 75Y 82Z 91

5-1. Removal (Transistor, Diode, Resistor and

Capacitor)

1. Add the solder to both ends of the chip (three leads for

chip transistor).

2. While attaching the soldering iron to both ends of the chip

(three leads for chip transistor) as shown below, remove

the chip by turning with tweezers.

Note: Be careful not to damage other chips.

5-2. Removal (IC)

1. Add the solder wick and soldering iron to each lead of the

IC and remove solder.

2. Add the soldering iron to each lead of the IC and left each

lead of the IC using thinner pin.

3. Remove the IC turning with pliers.

5-3. Mounting

1. Place the solder thinly on the chip mounting foil.

2. Solder the chip temporarily while holding the chip with the

tweezers.

3. Solder both ends of the chip (three leads for chip transis-

tor).

Tweezers

Chip

Soldering iron

Chip

Solder wick

Soldering iron

ChipThinner Pin Soldering iron

Pliers

Turn

Chip

Chip Tweezers

Soldering iron

Solder

Solder

Soldering iron

Chip

– 34 –

BLOCK DIAGRAM OF SWITCH BOARDPOSITIONER BOARD SWITCH BOARD

12345678

12345678

UPPERLOWER

F.G.XPOSIYPOSI

N.C.N.C.N.C.

UPPERLOWERF.G.XPOSIYPOSIGNDGNDGND

1

2

3

4569 8

10 7UPPER

SIDE

LOWERSIDE

VR3 POSITIONER

1234567891011121314151617181920212223242526272829

5V5VGNDGNDF.G.LOWERUPPERXPOSIYPOSITAKESPEEDSCAN0SCAN1SCAN2SCAN3SCAN4KEY0KEY1KEY2KEY3KEY4KEY5KEY6KEY7LED0LED1LED2LED3LED4

CN3

CN2

CN1

ToMain Board (2/2)

21

7

5

3

9

8

6

4

10

XPOSIYPOSI

1 2 3 F.G.SPEEDTAKELOWERUPPER

6 5

4

UPPER

LOWERVR1 TAKE

VR2SPEED

SW1

SW9

SW17

SW25

SW33

SW2

SW10

SW18

SW26

SW34

SW3

SW11

SW19

SW27

SW35

SW4

SW12

SW20

SW28

SW36

SW5

SW13

SW21

SW29

SW37

SW6

SW14

SW22

SW30

SW38

SW7

SW15

SW23

SW31

SW39

SW8

SW16

SW24

SW32

SW40

WIPE/MIX

ASOURCE 1

ADVE

BSOURCE 1

BDVE

LUM KEY

ASOURCE 2

AFREEZE

BSOURCE 2

BFREEZE

CHROMAKEY

ASOURCE 3

AUTOFADE

BSOURCE 3

EVENTMEMORY

NO.

AB.C.

AUTOTAKE

BB.C.

EVENTCALL

SET

OSDWIPE

1

5

9

FADE

OSDDVE

2

6

0

AUDIO

OSDCOL

3

7

ENTER

SELECT

ASOURCE 4

4

8

BSOURCE 4

KEY0KEY1KEY2KEY3KEY4KEY5KEY6KEY7

Q6

Q7

Q8

Q9

Q10

F.G.LOWERUPPERXPOSIYPOSITAKESPEED

D6

D11

D16

D21

D26

WIPE/MIX

ASOURCE 1

ADVE

BSOURCE 1

BDVE

D7

D12

D17

D22

D27

LUM KEY

ASOURCE 2

AFREEZE

BSOURCE 2

BFREEZE

D8

D13

D18

D23

D28

CHROMA KEY

ASOURCE 3

AUTOFADE

BSOURCE 3

EVENTMEMORY

D9

D14

D19

D24

D29

NO.

AB.C.

AUTOTAKE

BB.C.

EVENTCALL

D10

D15

D25

D30

ASOURCE 4

POSITION

SCENE

COLORCORRECT

BSOURCE 4

D20

Q1

Q2

Q3

Q4

Q5

D1

D2

D3

D4

D5

SCAN0SCAN1SCAN2SCAN3SCAN4

SCAN0SCAN1SCAN2SCAN3SCAN4

LED

0

LED

1

LED

2

LED

3

LED

4

D31 POWER

LED0LED1

LED2LED3LED4


– 35 –

ToPowerBoard. . CN3

1

4

8

6

9

12

16

14

17

20

24

22

25

28

32

30

SOURCE 1 S-C

SOURCE 1 S-Y

SOURCE 1 COMP

SOURCE 1 BIAS

SOURCE 2 S-C

SOURCE 2 S-Y

SOURCE 2 COMP

SOURCE 2 BIAS

SOURCE 3 S-C

SOURCE 3 S-Y

SOURCE 3 COMP

SOURCE 3 BIAS

SOURCE 4 S-C

SOURCE 4 S-Y

SOURCE 4 COMP

SOURCE 4 BIAS

1

2

3

4

5

6

7

8

DGND

D5V

AGND

A5V

+12V

GND

FGND

FGND

CN5(1/3)

CN3

+12V

BUFFER

BUFFER

BUFFER

BIAS1

Q38

Q39Q40

BUFFER

BUFFER

BUFFER

BIAS2

Q41

Q42Q43

BUFFER

BUFFER

BUFFER

BIAS3

Q44

Q45Q46

BUFFER

BUFFER

BUFFER

BIAS4

Q47

Q48Q49

IC20 SELECTOR

IC21 SELECTOR

12

14

15

11

1

5

2

4

YA0

YA1

YA2

YA3

YB0

YB1

YB2

YB3

12

14

15

11

YA0

YA1

YA2

YA3

ZA 13

ZB 3

ZA 13

IC34 SELECTOR

IC35 SELECTOR

12

14

15

11

1

5

2

4

YA0

YA1

YA2

YA3

YB0

YB1

YB2

YB3

12

14

15

11

YA0

YA1

YA2

YA3

ZA 13

ZB 3

ZA 13

A5V

D5V

DGND

AMP.Q106-Q111

4 3

5

ASEL1

ASEL0

SB

SA

SA

SB

10

9

9

10

IC23(2/4)SWITCH

8 9

6

IC23(3/4)SWITCH

SVSELA

BUFFERQ100

FILTERCF10,CF11

AMP.

Q101-Q104

BIASQ105

VR2 (Y GAIN)

MAIN BOARD

2

4

IC19

BUFFERQ139

BUFFERQ511

BUFFERQ115

BUFFERQ114

TP15

TP16 (Y GAIN)

CLAMPQ113

IC25 A/D CONVERTER

40

45

VINB

VINA

22-29SY0-SY7

IC29 WRITE CONTROL

IC26 Y/C SEPARATOR

16CLOUT

17VIN

60CLMP

10-17SC0-SC7

33-40 COMPC0 |COMPC7

43-50 COMPY0 |COMPY7

DA0-DA79-16

DB0-DB721-28

SY0-SY7

SC0-SC7

D0-D733-40

D0-D7

C0-C7C0-C7

25-32CLK

45 31 4FSCS

AMP.Q119-Q124

4 3

5

IC37(2/4)SWITCH

8 9

6

IC37(3/4)SWITCH

SVSELB

BUFFERQ125

FILTERCF12,CF13

AMP.

Q126-Q129

BIASQ131

2

4

IC18

BUFFERQ130

BUFFERQ513

BUFFERQ133

BUFFERQ135

TP17

TP18

CLAMPQ132

IC39 A/D CONVERTER

40

45

VINB

VINA

22-29SY0-SY7

IC43 WRITE CONTROL

IC40 Y/C SEPARATOR

16CLOUT

17VIN

60CLMP

10-17SC0-SC7

33-40 COMPC0 |COMPC7

43-50 COMPY0 |COMPY7

DA0-DA79-16

DB0-DB721-28

SY0-SY7

SC0-SC7

D0-D733-40

D0-D7

C0-C7C0-C7

25-32

CLK45 31 4FSCS

BIAS

Q151

BIAS

Q150

IC51112

12

4

+5V

IC47TP10 (ASYNC)

203

202EXSYNCEXI

IC51212

12

4

+5V

IC50

TP11 (H PHASE A-B)203

202EXSYNCEXI

SYNCSEPARATOR

SYNCSEPARATOR

VR5 (H PHASE A-B)

FILTER

Q117

OSC

IC33,D13L72 (WRITE A VCO)

FILTER OSCQ145,X2Q118

TP2 (WRITE A VCO)

TP3

56PCO

52OSC2IN

2OSC1IN

4PCO

FILTER

Q137

OSC

IC44,D15L71 (WRITE B VCO)

FILTER OSCQ146,X3Q138

TP4(WRITE B VCO)

TP5

56PCO

52OSC2IN

2OSC1IN

4PCO

IC62 SYNC GENERATORIC28 LINE MEMORY1-4,

9-12DO0-DO7

TOLM0-TOLM7

13-16,21-24

8

17

6

19

RCLK

WCLK

RSTR

RSTW

75-82FRMLM0

| FRMLM7

65-72TOLM0-TOLM7

LMCLK62

RRSTWRST

6364

520

REWE

FRMLM0|

FRMLM7TOLM0

| TOLM7LMCLK

RRSTWRST

IC30CACHE D-RAM

11,13,14,16,19,21-24,47,49,50,52,55,57,

58,60DQ0-DQ15

AD0-AD932-34,38-41,67-69

DQ0-DQ15

147-149,171-177AD0-AD9

AS0-AS226-28

151-154,167-169

AS0-AS2

158-165186-193

CMDRASCASDTD

CMDRASCASDTD

199

198

197

DQ0|

DQ15

AD0-AD9

AS0-AS2

CMD

RAS

CAS

DTD

IC513 BUS BUFFER

1A2

1A1

1A4

1A3

1Y2

1Y1

1Y4

1Y3

4

3

8

6

16

18

12

14

33

35

37

36

38

40

42

41

43

45

47

46

48

50

52

51

SOURCE 1R GND

SOURCE 1R

SOURCE 1L

SOURCE 1L GND

SOURCE 2R GND

SOURCE 2 R

SOURCE 2 L

SOURCE 2L GND

SOURCE 3R GND

SOURCE 3 R

SOURCE 3 L

SOURCE 3L GND

SOURCE 4R GND

SOURCE 4 R

SOURCE 4 L

SOURCE 4L GND

CN5(2/3) IC500ELECTRONIC VR

BSEL1

BSEL010

9SA

SB

10

9SA

SB

IN2

IN1

OUT2

OUT1

11

15

10

16CONT1

IC501ELECTRONIC VRIN2

IN1

OUT2

OUT1

11

15

10

16CONT1

5


IN1

OUT2

OUT1

11

15

10

16CONT1


IN1

OUT2

OUT1

11

15

10

16CONT1

5

5

IC504(1/2)2 1

MIXING

IC504(2/2)

6 7MIXING

IC505(1/2)2 1

AMP.

IC505(2/2)

6 7AMP.

BIAS

Q508

54

56

57

60

64

66

68

70

71

REC OUT L

REC OUT R

REC OUT S-C

REC OUT S-Y

REC OUT COMP

PRV OUT COMP

GPI

RS232C DT

RS232C DR

CN5(3/3)

BUFFER TOGPI

IC16RS232C DRIVER

Q37

DOUT1

RIN1

1412

DIN1

ROUT1

7

9DT1

DR1

YAD0-YAD7SHDG

85-92, 96AIN0-AIN7SHGA

111-119

YAD0-YAD7SHDG

85-9296

BIN0-BIN7SHGB

122-130

D0B-D7B (8-BIT)REG0-REG5 (6-BIT)STB1B, ST2BVBLKHBLKGPIBIAS1BIAS2BIAS3BIAS4DR1DT1FADE1FADE2FADE3FADE4SVSELASVSELBOSDCSOSDDATOSDCLKOSDRST

VBLKHBLKGPI

BIAS1BIAS2BIAS3BIAS4DR1DT1

FADE1FADE2FADE3FADE4

SVSELASVSELBOSDCS

OSDDATOSDCLKOSDRST

FILTERQ3

OSC

IC53,D930L929(READ VCO)159

OSC2IN

3HPC

TP6(READ VCO)

OSC

IC56,D7,D8,X5

43OSC1

66-7274-80 ST1

REG0-REG5D0-D7

ST2, REG0-REG5D0-D7

110,112-125

ST2,REG0-REG5

D0-D7 110, 112-125

SVSELB145

S/V

SVSELA145

S/V

D0B-D7B,ST2BREG0B-REG5B

D0B-D7B, ST2BREG0B-REG5B

D0B-D7B,ST1BREG0B-REG5B

YCLK103

VR3(FSC)

VD5V

Y3C1

YCLK156

IC59 LINE MEMORY

DO7DO6DI7

DO5DI6

DO4DI5DI4

REWE

103YCLK

HD

VD

CCLK

HD

VD

107

98

97

CCLK

H

V

1

2

3

4

5

6

7

8

9

10

CHARIN

GND

SYNC

GND

+9VOUT

GND

KB15SW

B

R

G

CN4

5 20

1211131014 91516

CH4/TD7CH3/TD6

CH2/TD5

CH1/TD4

CH0

102101

97

96

99

DO3DI3

DO2DI2

DO1DI1

DO0DI0

RSTRRSRWRCLKWCLK

421 322 223124619817

WP3/TD2

WP2/TD1

WP1/TD0

LMRST

94

93

92

98

IC14(2/2)

AMP.

AMP.

IC13(1/2)

5 8

AMP.

AMP.

IC13(2/2)

IC14(1/2)4 1

4 1

5 8

BUFFER

Q140 Q9-Q11AMP.

BUFFER

Q141

Q14-Q16AMP.BUFFER

Q17

MIX

Q20

BUFFER

Q12BIAS

Q13FILTER

CF5

FILTER

CF6

BUFFER

Q5,Q6

BUFFER

Q7,Q8

MIX

Q36 Q25-Q27AMP.

Q30-Q32AMP.BUFFER

Q33BIAS

Q29FILTER

CF7

FILTER

BUFFER

Q21,Q22

BUFFER

Q23,Q24

BUFFER

Q28

CF8

IC52D/A CONVERTER

BOUT20

AOUT

B1-B8

A1-A8

CLKB

6-13

COUT

YOUT 22

CLKA

14

1-4, 25-28

5

IC55D/A CONVERTER

BOUT20

AOUT

B1-B8

A1-A8

CLKB6-13

COUT

YOUT

CLKA14

5

22

FS4

2YCLK

ToMainBoard(2/2)

5-8,10-13

RECC0-RECC7

17-24RECY0-RECY7

32-35,37-40

PRVC0-PRVC7

47-54PRVY0-PRVY7

FS4

2YCLK

SYNC

IC58CHARACTERGENERATOR

VSYNCHSYNC

VR VG VB

CCLK

OSDCS

OSDDAT

OSDCLK

OSDRST

2

1

3

4

16 17 18

OS

DR

OS

DG

OS

DB

8OSCIN

CS

DATA

CLK

RESET

64 63 62

BLK1

11

OS

D

65

4

15

58

FS4

2YCLK

SYNC

12

4

VD5VIC12

SYNC

BUFFERQ21

24

VD5V

IC48

12

4

VD5VIC49

SYNC

109CHAR

+9V REG

IC64+12V

1 2

3

108

106

107

KBB

KBR

KBG

59

61HD

VP

TP8(VD)

TP9(HD)

2

42

4IC100

IC101

HD

VD

19

20

HBLK

VBLK

152RCLK CCLK

BLOCK DIAGRAM OF MAIN BOARD (1/2)

FADE4

128

129PAL/NTSC

A/B

VD5V

FADE3

FADE2

FADE1

4YOUT

4YOUT

1

37

2

IC901 SWITCH

1

37

2

IC900 SWITCH

98

97H

V

TP21(FSC)

ToTitler

WP090

DQ0 |DQ15

XAS0|

XAS2

8 29 30 31

CC1

CC0

WE

CKUI

IC800GATE ARRAY LOGIC

196182181180

39

38

35

CC1

CC0

WE

15-20,24-30,36

XDQ0|

XDQ15AS0 |AS2

CC1

CC0

WE

K

4

5

6

10

XCC1

XCC0

XWE

CKUO

CKI

4041423235

1,51,52183-185 21-23

YAD0-YAD7SHDG

1312

11VD5VIC801(4/4)

AS3-AS9 AS3-AS942-44,61-64

AIN0-AIN7,SHGA

BIN0-BIN7,SHGB

R800-R802

R812R811

R813

R803-R809R816-R823R862

ACKUI31

IC42 LINE MEMORY1-4,

9-12DO0-DO7

TOLM0-TOLM7

13-16,21-24

8

17

6

19

RCLK

WCLK

RSTR

RSTW

75-82

65-72

62

6364

520

REWE

IC46CACHE D-RAM

DQ0-DQ15

AD0-AD932-34,38-41,67-69147-149,171-177

AS0-AS226-28

151-154,167-169

158-165186-193

CMDRASCASDTD

199

198

197

DQ0 |DQ15

XAS0|

XAS2

8 29 30 31

CC1

CC0

WE

CKUI

IC803GATE ARRAY LOGIC

196182181180

39

38

35

15-20,24-30,36

XDQ0|

XDQ15AS0 |AS2

CC1

CC0

WE

K

4

5

6

10

XCC1

XCC0

XWE

CKUO

CKI

4041423235

1,51,52183-185 21-23

AS3-AS942-44,61-64

R830-R832

R842R841

R843

R833-R840R846-R853

BCKUI31

AS3-AS9

CC1

CC0

WE

1-4, 25-28

109

8VD5VIC801(3/4)

Y3CLK108

1312

11VD5VIC804(4/4)

109

8VD5VIC804(3/4)

108Y3CLK

5

ACKUI

BCKUI

11,13,14,16,19,21-24,47,49,50,52,55,57,

58,60

TP7

VD5V

86PAL

128PAL/NTSC

VD5V

– 36 –

BLOCK DIAGRAM OF MAIN BOARD (2/2)MAIN BOARD

123456789101112131415161718192021222324252627282930

5V5VGNDGNDF.G.LOWERUPPERXPOSIYPOSITAKESPEEDSCAN0SCAN1SCAN2SCAN3SCAN4KEY0KEY1KEY2KEY3KEY4KEY5KEY6KEY7LED0LED1LED2LED3LED4N.C.

CN1

ToSwitch Board

ToMain Board (1/2)


23456789

A1A2A3A4A5A6A7A8

OE1

Y1Y2Y3Y4Y5Y6Y7Y8

OE2IC1BUS

BUFFER

1817161514131211

D0D1D2D3D4D5D6D7

1 19

LED0LED1LED2LED3LED4

2569

12

1

1Q2Q3Q4Q5Q

OC

1D2D3D4D5D6D7D8D

CLK

IC7D-FFs

3 4 7 81314171811

D0D1D2D3D4

LEDCLK

LED0LED1LED2LED3LED4

IC4 MICROPROCESSOR

LOWERUPPERXPOSIYPOSITAKE

SPEEDSCAN0SCAN1SCAN2SCAN3SCAN4

LOWER

XPOSIYPOSITAKE

SPEEDSCAN0SCAN1SCAN2SCAN3SCAN4

66

60 61 62 63 1 2 3 4 5

Vss

XPOSIYPOSITAKESPEEDSCAN0SCAN1SCAN2SCAN3SCAN4

1213141516171819205025

6

9

10

DATA0DATA1DATA2DATA3DATA4DATA5DATA6DATA7LEDCLKST1ST2

KEYGATE

X2

X1

+

–

IC115VREGULATOR

1

3

2IN OUT

GND

+12V

RIPPLEFILTER

Q1

+

–

+

–

D1 D2

D3

VD5V

IC3RESET

7RESETVcc

F5V 8 51 55 64 71

65

VDD

PAL/NTSCVDD

AVDD

NMI

AVREF1

6RESET

7

UPPER

4GND

L2

L3

D0D1D2D3D4D5D6D7

LEDCLKST1ST2

KEYGATEKEYGATE

X1

C15

113478

131417181

1Q2Q3Q4Q5Q6Q

CLK1D2D3D4D5D6D7D8DOC

IC6D-FFs

2 5 6 91215

945

1213

G1Q2Q3Q4Q

CLK1D2D3D4D

IC5D-FFs

1 2 71015

REGCLKD0D1D2D3D4D5

BUSCLKD0D1D2D3

ASEL0ASEL1BSEL0BSEL1

REG0REG1REG2REG3REG4REG5

L1

+

–

VD5V

BUSCLK 24

REGCLK 21

5924SW

REG0-REG5 (6-Bit)D0B - D7B (8-BIT)ST1B, ST2B

VD5V

FADE1FADE2FADE3FADE4

SVSELASVSELB

FADELDFADECLKFADEDAT

SVSELASVSELB

VBLKHBLKGPIBIAS4BIAS3BIAS2BIAS1DR1DT1

VBLKHBLK

GPIBIAS4BIAS3BIAS2BIAS1

DR1DT1

585756

4847

727374757677787980

OSDDATOSDCS

OSDCLKOSDRST

52535449

151617

AO3AO4AO5AO6

LDCLKDI

IC15D/A CONVERTER

2345

OSDDATOSDCSOSDCLKOSDRST

R720-R735

ScrewsXSB3+10FXXSB26+4FXXTB3+10CFXXTB3+10CFXK

No.1234

Numbers show screws. DescriptionBinding Head ScrewsBinding Head ScrewsBinding Head Tapping ScrewsBinding Head Tapping Black Screws

PACKAGING

CN1

M7M9

Serial No.Label

M6

1

1

3

3

3

3

2

4

4

M26

AB

B

M30

PCB5

CF101

FB1

FB2

M28

PCB2

M20

PCB1

M40

M46M45 E1

M47

M47

M48

M47

Serial No.Label

M49M49

M50

M42,43,44M41

M16 M12

M17

M14

M13

M15

M11

M18

M18

FB2

M19

M1

M2

M3M5

M4

M25

M27

M8

PCB3

M23PCB4

M22

M21

FB1

M24

3

A

WJ-AVE55

M10

– 42 –

EXPLODED VIEW

Printed in Japan

C-573 NN 5,12,23

wj-ave55 - a2m2this service information is designed for experienced repair technicians only and is...

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